Stephen Chester, D.O.
NPI 1093795924 · Emergency Medical Services (Emergency Medicine) Physician · Palos Heights, IL
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Chester, D.O. is a Emergency Medical Services (Emergency Medicine) Physician provider in Palos Heights, IL (NPI 1093795924).
Provider details
- NPI number
- 1093795924
- Entity type
- Individual
- Primary specialty
- Emergency Medical Services (Emergency Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 036-105420 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
470 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 264 | $173 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 167 | $119 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 39 | $70 |
Typical Medicare-allowed amounts for these services range $70–$173 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ondansetronbrand: Ondansetron Odt | 52 | 49 |
| Tramadol Hcl | 50 | 44 |
| Cephalexin | 35 | 31 |
| Ibuprofen | 28 | 28 |
| Prednisone | 15 | 14 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 13 | 12 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-18
- Last updated
- 2007-11-20
Frequently asked questions
- What is Stephen Chester's NPI number?
- Stephen Chester's National Provider Identifier (NPI) is 1093795924, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Chester's specialty?
- Stephen Chester is listed in the NPPES registry with a primary specialty of Emergency Medical Services (Emergency Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Chester located?
- Stephen Chester's practice location on file with NPPES is 12251 S 80th Ave, Palos Heights, IL 60463-1256.
- What is Stephen Chester's phone number?
- The practice phone number listed in the NPPES registry for Stephen Chester is (708) 932-5800.
- Does Stephen Chester accept Medicare?
- Stephen Chester is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Chester's NPI active?
- Yes — Stephen Chester's NPI (1093795924) is active in the NPPES registry as of the last update on 2007-11-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.